9a05aa7fc4
22707-x2apic-preenabled-check.patch - bnc#641419 - L3: Xen: qemu-dm reports "xc_map_foreign_batch: mmap failed: Cannot allocate memory" 7434-qemu-rlimit-as.patch - Additional or upstream patches from Jan 22693-fam10-mmio-conf-base-protect.patch 22694-x86_64-no-weak.patch 22708-xenctx-misc.patch 21432-4.0-cpu-boot-failure.patch 22645-amd-flush-filter.patch qemu-fix-7433.patch - Maintain compatibility with the extid flag even though it is deprecated for both legacy and sxp config files. hv_extid_compatibility.patch - bnc#649209-improve suspend eventchn lock suspend_evtchn_lock.patch - Removed the hyper-v shim patches in favor of using the upstream version. - bnc#641419 - L3: Xen: qemu-dm reports "xc_map_foreign_batch: mmap failed: Cannot allocate memory" qemu-rlimit-as.patch - Upstream c/s 7433 to replace qemu_altgr_more.patch 7433-qemu-altgr.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=90
49 lines
1.8 KiB
Diff
49 lines
1.8 KiB
Diff
# HG changeset patch
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# User Keir Fraser <keir@xen.org>
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# Date 1289813498 0
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# Node ID 87f248de52304bc96a80dc093250fed0197f37e0
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# Parent 8af10bd7f2d0e9300f1bc68f7e2fb137fa839365
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x2apic: Remove a panic condition in enabling x2APIC
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Currently Xen triggers a panic if user disables VT-d by command line
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while not disable x2APIC. This requires users to specify both
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"iommu=0" and "x2apic=0" to disable VT-d if the platform supports
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x2APIC. It's not user friendly. This patch removes the panic
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condition. That's to say, don't require user to specify "x2apic=0"
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when specify "iommu=0". As long as VT-d is not enabled (disabled in
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BIOS or in command line), x2APIC won't be enabled naturally (x2APIC
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depends on VT-d Interrupt remapping).
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Signed-off-by: Weidong Han <weidong.han@intel.com>
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--- a/xen/arch/x86/apic.c
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+++ b/xen/arch/x86/apic.c
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@@ -1000,22 +1000,11 @@ static void enable_bsp_x2apic(void)
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}
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else
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{
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- if ( !iommu_enabled || !iommu_intremap || !iommu_qinval )
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- panic("Cannot enable x2APIC due to iommu or interrupt "
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- "remapping or queued invalidation is disabled "
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- "by command line!\n");
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- else
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- {
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- if ( x2apic_preenabled )
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- panic("x2APIC: already enabled by BIOS, but "
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- "iommu_supports_eim fails\n");
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- else
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- {
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- printk("Not enable x2APIC due to "
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- "iommu_supports_eim fails!\n");
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- return;
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- }
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- }
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+ if ( x2apic_preenabled )
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+ panic("x2APIC: already enabled by BIOS, but "
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+ "iommu_supports_eim failed!\n");
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+ printk("Not enabling x2APIC: depends oniommu_supports_eim\n");
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+ return;
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}
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}
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